private static Func <IServiceProvider, IRabbitMQPersistentConnection> RabbitMQPersistentConnectionBuilder(
RabbitMQOptions options) =>
serviceProvider =>
{
var logger = serviceProvider.GetRequiredService <ILogger <DefaultRabbitMQPersistentConnection> >();
var factory = new ConnectionFactory()
{
HostName = options.HostName,
DispatchConsumersAsync = true
};
if (!string.IsNullOrEmpty(options.Username))
{
factory.UserName = options.Username;
}
if (!string.IsNullOrEmpty(options.Password))
{
factory.Password = options.Password;
}
var retryCount = options.RetryCount != 0 ? options.RetryCount : 5;
return(new DefaultRabbitMQPersistentConnection(factory, logger, retryCount));
};
public static IServiceCollection AddRabbitMQEventBus(
this IServiceCollection services,
Action <RabbitMQOptions> optionsBuilder)
{
var options = new RabbitMQOptions();
optionsBuilder(options);
options = options.Validate();
return(services
.AddEventBus(options)
.AddRabbitMQPersistentConnection(options));
}
private static RabbitMQOptions Validate(this RabbitMQOptions options)
{
Ensure.String.IsNotNullOrWhiteSpace(options.HostName, nameof(options.HostName));
Ensure.String.IsNotEmptyOrWhiteSpace(options.HostName, nameof(options.HostName));
Ensure.String.IsNotEmptyOrWhiteSpace(options.SubscriptionName, nameof(options.SubscriptionName));
Ensure.String.IsNotNullOrWhiteSpace(options.SubscriptionName, nameof(options.SubscriptionName));
if (options.RetryCount != 0)
{
Ensure.Comparable.IsGt(options.RetryCount, 0, nameof(options.RetryCount));
}
return(options);
}
private static Func <IServiceProvider, EventBusRabbitMQ> EventBusRabbitMQBuilder(RabbitMQOptions options) =>
sp =>
{
var subscriptionClientName = options.SubscriptionName;
var rabbitMQPersistentConnection = sp.GetRequiredService <IRabbitMQPersistentConnection>();
var logger = sp.GetRequiredService <ILogger <EventBusRabbitMQ> >();
var eventBusSubcriptionsManager = sp.GetRequiredService <IEventBusSubscriptionsManager>();
var retryCount = options.RetryCount != 0 ? options.RetryCount : 5;
return(new EventBusRabbitMQ(rabbitMQPersistentConnection, logger, sp, eventBusSubcriptionsManager, subscriptionClientName, retryCount));
};
internal static IServiceCollection AddRabbitMQPersistentConnection(this IServiceCollection services, RabbitMQOptions options) => services.AddSingleton(RabbitMQPersistentConnectionBuilder(options));
internal static IServiceCollection AddEventBus(this IServiceCollection services, RabbitMQOptions options) => services.AddSingleton <IEventBus, EventBusRabbitMQ>(EventBusRabbitMQBuilder(options)) .AddSingleton <IEventBusSubscriptionsManager, InMemoryEventBusSubscriptionsManager>();
